期刊
BIOMOLECULES
卷 11, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/biom11050648
关键词
juvenile idiopathic arthritis; cartilage turnover markers; procollagen II C-terminal propeptide; C-telopeptide of type II collagen; tumor necrosis factor-alpha
资金
- Medical University of Silesia in Katowice, Poland [PCN-1-020/N/0/I]
The joint destruction in juvenile idiopathic arthritis (JIA) can be diagnosed and treated earlier through the determination of circulating cartilage-matrix turnover markers, and the response to treatment is correlated with the levels of these markers. Understanding the changes in type II collagen metabolism may lead to new diagnostic tools and therapeutic strategies for children with JIA.
Joint destruction in juvenile idiopathic arthritis (JIA), initiated in the early, preclinical stage of the disease, is diagnosed on the basis of clinical evaluation and radiographic imaging. The determination of circulating cartilage-matrix turnover markers can facilitate the diagnosis and application of better and earlier treatment strategies for JIA. We have shown that 96 JIA patients have elevated levels of procollagen II C-terminal propeptide (PIICP), reflecting the extent of joint cartilage biosynthesis, and C-telopeptide of type II collagen (CTXII), a biomarker of the resorption of this tissue. Patients who did not respond to treatment had particularly high levels of these markers. JIA treatment resulted in the normalization of these markers in remissive patients, but not in those with active JIA. We showed correlations between examined variables and inflammatory process indicators, i.e., C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and tumor necrosis factor-alpha (TNF-alpha). The TNF-alpha of patients responding to treatment correlated with PIICP, especially in the patients before treatment (r = 0.898, p < 0.001). Significant changes in serum PIICP during JIA therapy suggest its potential diagnostic utility in the monitoring of disease activity and the possibility of its use in assessing treatment towards remission. Understanding changes in type II collagen metabolism over the course of the discussed arthritis may allow the implementation of both new diagnostic tools and new therapeutic strategies in children with JIA.
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